CN103898390A - Intermediate alloy for preparation of titanium alloy and preparation method thereof - Google Patents
Intermediate alloy for preparation of titanium alloy and preparation method thereof Download PDFInfo
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- CN103898390A CN103898390A CN201410129364.XA CN201410129364A CN103898390A CN 103898390 A CN103898390 A CN 103898390A CN 201410129364 A CN201410129364 A CN 201410129364A CN 103898390 A CN103898390 A CN 103898390A
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Abstract
The invention discloses an intermediate alloy for preparation of titanium alloy and a preparation method thereof, relating to aluminum-molybdenum-tin (aluminum-molybdenum-tin-based) intermediate alloys for preparation of the titanium alloy and preparation methods thereof. The alloy is characterized by containing the following alloy compositions in percentage by weight: 20.0-25.0% of Mo, 20.0-25.0% of Cr, 10-15% of Sn, 10-15% of Zr and the balance of Al. According to the aluminum-molybdenum-tin-chromium-zirconium alloy disclosed by the invention, metallic compounds, which take molybdenum, tin, chromium, zirconium and the like as main ingredients, have the characteristics of good brittleness and easiness in fracture, and a titanium alloy production process is shortened and is easier in operation. According to the preparation method, oxides are taken as raw materials, so that the cost is low, the smelting process is stable, and the state of alloy forming is good; the alloying is uniform, and elemental metals are added to titanium sponge and aluminum beans in the form of intermediate alloy, so that the degree of segregation of the titanium alloy is lowered.
Description
Technical field
A kind of for standby master alloy of titanium alloys and preparation method thereof, relate to a kind of for the standby aluminium molybdenum tin of titanium alloys (aluminium molybdenum tinbase) master alloy and preparation method thereof.
Background technology
Titanium alloy is widely used in war industry, aerospace industry and civilian industry, and master alloy is the important raw and processed materials of producing titanium alloy.At present, titanium alloy master alloy adopts binary alloy, ternary alloy mostly, for reach use time performance requriements, need to add several binary alloys or ternary alloy, thereby easily cause the unstable of product performance, bring difficulty to production titanium alloy pilot process.Need one the each composition of multicomponent alloy to be regulated, master alloy simple to operate simultaneously.
Summary of the invention
The object of the invention is the deficiency existing for above-mentioned prior art, provide one to regulate quinary alloy composition simultaneously, simple to operate, the alloying constituent of preparation is even, structure stability is good, have good toughness, plasticity and Hot Deformation Performance for standby master alloy of titanium alloys and preparation method thereof.
The object of the invention is to be achieved through the following technical solutions.
For the standby master alloy of titanium alloys, it is characterized in that the weight percent alloy composition of its alloy is: Mo:20.0%～25.0%, Cr:20.0%～25.0%, Sn:10%～15%, Zr:10%～15%, Al is surplus.
Of the present invention a kind of for the standby master alloy of titanium alloys, it is characterized in that the weight percent alloy composition of its alloy is: Mo:22.0%～24.0%, Cr:22.0%～24.0%, Sn:11%～13%, Zr:11%～13%, Al is surplus.
A kind of preparation method for the standby master alloy of titanium alloys of the present invention, it is characterized in that its preparation process adopts metallothermics, take aluminium as reductive agent, molybdic oxide, tindioxide, chromium sesquioxide, zirconium dioxide are oxygenant, Potcrate is heat-generating agent, Calcium Fluoride (Fluorspan) is slag former, is smelted and is made by metallothermics.
A kind of preparation method for the standby master alloy of titanium alloys of the present invention, it is characterized in that aluminium powder, molybdic oxide, chromium sesquioxide, tindioxide, the zirconium dioxide of described employing metallothermics smelting process, the weight proportion of Potcrate are: (1.0～1.3): (0.415～0.83): (0.39～0.725): (0.17～0.22): (0.165～0.22): (0.125～0.215), Calcium Fluoride (Fluorspan) add-on is 5%～20% of batching gross weight.
A kind of preparation method for the standby master alloy of titanium alloys of the present invention, is characterized in that the raw material loading temperature of described employing metallothermics smelting process is 30～60 ℃.
A kind of preparation method for the standby master alloy of titanium alloys of the present invention, it is characterized in that described reductive agent, oxygenant, heat-generating agent, slag former, after drying, then carry out metallothermic reduction, bake out temperature is 100～120 ℃, and drying time is 10～12 hours.
A kind of preparation method for the standby master alloy of titanium alloys of the present invention, is characterized in that described reductive agent, oxygenant, heat-generating agent, slag former are powdery.
A kind of for the standby master alloy of titanium alloys, for quinary alloy is as master alloy, the metallicity compound take molybdenum, tin, chromium, zirconium etc. as main component, enbrittles, breakable feature, shorten titanium alloy production process, make titanium alloy production process more easy to operate.Can add in titanium sponge, aluminium shot with alloy packet form, smelt when titanium alloy with consumable electrode vacuum furnace, evenly easily control the size of electric current because of spindle composition, facilitate the preparation of titanium alloy.The present invention is take oxide compound as raw material, and cost is low, and smelting process is steady, and the state that alloy forms is good; Alloying is even, joins in titanium sponge, aluminium shot with the form of master alloy, has reduced the degree of titanium alloy segregation.
Embodiment
For the standby master alloy of titanium alloys, the weight percent alloy composition of its alloy is: Mo:20.0%～25.0%, and Cr:20.0%～25.0%, Sn:10%～15%, Zr:10%～15%, Al is surplus.More excellent composition is: Mo:22.0%～24.0%, and Cr:22.0%～24.0%, Sn:11%～13%, Zr:11%～13%, Al is surplus.
The preparation method of a kind of aluminium molybdenum tin Cr-Zr alloy of the present invention, its preparation process adopts metallothermics, take aluminium as reductive agent, molybdic oxide, tindioxide, chromium sesquioxide, zirconium dioxide are oxygenant, Potcrate is heat-generating agent, Calcium Fluoride (Fluorspan) is slag former, and add-on is 5%～20%, is smelted and is obtained the finished product by metallothermics; Its reductive agent, oxygenant, heat-generating agent and slag former are powdery; Shove charge again after powder is dried 10～12 hours at 100～120 ℃ of temperature; The best smelting ratio of aluminium powder, molybdic oxide, chromium sesquioxide, tindioxide, zirconium dioxide, Potcrate is: (1.0～1.3): (0.415～0.83): (0.39～0.725): (0.17～0.22): (0.165～0.22): (0.125～0.215); Calcium Fluoride (Fluorspan) add-on is 5%～20% of batching gross weight, and raw material loading temperature is 30～60 ℃.
The present invention is on the basis of aluminium molybdenum tin alloy, suitably adds chromium, zr element, just can obtain novel master alloy by existing installation, metallurgical technology, below by embodiment in detail the present invention is described in detail.
Embodiment 1
1, starting material are screened, by analyzing, composition of raw material is determined; Then starting material are dried to bake out temperature: 120 ℃, drying time: 12 hours.
2, build to scale stove, calculate alloy proportion.
Table 1 embodiment 1 alloy formula table
3, raw material is packed in mixer and carry out batch mixing, batch mixing requires: each starting material must fully mix, and guarantees between starting material that contact fully.
4, last loading smelting, charging temperature is 42 ℃.Within 24 hours, come out of the stove later, take out alloy pig, obtain product.Carry out chemical analysis to taking out alloying constituent, obtain following result.
Table 2 embodiment 1 alloying constituent table
Find out from above result, alloying constituent reaches necessary requirement, and stable components, and foreign matter content is all lower.In the process of production titanium alloy, the aluminium molybdenum tin Cr-Zr alloy that example 1 is produced joins in the starting material such as aluminium shot, titanium sponge, smelt with consumable electrode vacuum furnace, effectively guarantee the stability of strength of current, the titanium alloy ingot sampling of producing is analyzed, and alloying constituent is even, and structure stability is good, there is good toughness, plasticity and Hot Deformation Performance, reached the requirement of researching and developing this master alloy.
Embodiment 2-5, operates by embodiment 1 method, and particular content is in table 3.
Table 3 aluminium molybdenum tin Cr-Zr alloy embodiment
Claims (7)
1. for the standby master alloy of titanium alloys, it is characterized in that the weight percent alloy composition of its alloy is: Mo:20.0%～25.0%, Cr:20.0%～25.0%, Sn:10%～15%, Zr:10%～15%, Al is surplus.
2. according to claim 1 a kind of for the standby master alloy of titanium alloys, the weight percent alloy composition that it is characterized in that its alloy is: Mo:22.0%～24.0%, Cr:22.0%～24.0%, Sn:11%～13%, Zr:11%～13%, Al is surplus.
3. a kind of preparation method for the standby master alloy of titanium alloys according to claim 1, it is characterized in that its preparation process adopts metallothermics, take aluminium as reductive agent, molybdic oxide, tindioxide, chromium sesquioxide, zirconium dioxide are oxygenant, Potcrate is heat-generating agent, Calcium Fluoride (Fluorspan) is slag former, is smelted and is made by metallothermics.
4. a kind of preparation method for the standby master alloy of titanium alloys according to claim 3, it is characterized in that aluminium powder, molybdic oxide, chromium sesquioxide, tindioxide, the zirconium dioxide of described employing metallothermics smelting process, the weight proportion of Potcrate are: (1.0～1.3): (0.415～0.83): (0.39～0.725): (0.17～0.22): (0.165～0.22): (0.125～0.215), Calcium Fluoride (Fluorspan) add-on is 5%～20% of batching gross weight.
5. a kind of preparation method for the standby master alloy of titanium alloys according to claim 1, is characterized in that the raw material loading temperature of described employing metallothermics smelting process is 30～60 ℃.
6. a kind of preparation method for the standby master alloy of titanium alloys according to claim 3, it is characterized in that described reductive agent, oxygenant, heat-generating agent, slag former, after drying, then carry out metallothermic reduction, bake out temperature is 100～120 ℃, and drying time is 10～12 hours.
7. a kind of preparation method for the standby master alloy of titanium alloys according to claim 3, is characterized in that described reductive agent, oxygenant, heat-generating agent, slag former are powdery.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104928540A (en) * | 2015-06-19 | 2015-09-23 | 承德天大钒业有限责任公司 | Al-Nb-Si-Ti intermediate alloy and preparation method thereof |
| CN106756421A (en) * | 2016-11-30 | 2017-05-31 | 承德天大钒业有限责任公司 | A kind of aluminium molybdenum chromium tin niobium zirconium intermediate alloy and preparation method thereof |
| CN106756266A (en) * | 2016-11-30 | 2017-05-31 | 承德天大钒业有限责任公司 | A kind of aluminium molybdenum chromium tin niobium intermediate alloy and preparation method thereof |
| CN107586955A (en) * | 2016-07-08 | 2018-01-16 | 宝钢特钢有限公司 | A kind of quaternary intermediate alloy prepared for titanium alloy, preparation method and the usage |
| CN109881034A (en) * | 2019-03-22 | 2019-06-14 | 河北四通新型金属材料股份有限公司 | A kind of tin zirconium intermediate alloy, preparation method and applications |
| CN110564997A (en) * | 2019-09-17 | 2019-12-13 | 承德天大钒业有限责任公司 | Aluminum-titanium-molybdenum intermediate alloy and preparation method thereof |
| CN110760708A (en) * | 2019-11-27 | 2020-02-07 | 承德天大钒业有限责任公司 | Aluminum-tin-zirconium-molybdenum-chromium intermediate alloy and preparation method thereof |
| CN114672286A (en) * | 2022-04-15 | 2022-06-28 | 王凯 | Self-heating composition and application thereof |
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| CN102433489A (en) * | 2011-12-15 | 2012-05-02 | 承德天大钒业有限责任公司 | Aluminium-vanadium-tin-copper-iron intermediate alloy and preparation method thereof |
| CN102628130A (en) * | 2012-04-18 | 2012-08-08 | 上海康臣特种金属材料有限公司 | Aluminum tin zirconium molybdenum chromium intermediate alloy and preparation method thereof |
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| CN102433489A (en) * | 2011-12-15 | 2012-05-02 | 承德天大钒业有限责任公司 | Aluminium-vanadium-tin-copper-iron intermediate alloy and preparation method thereof |
| CN102628130A (en) * | 2012-04-18 | 2012-08-08 | 上海康臣特种金属材料有限公司 | Aluminum tin zirconium molybdenum chromium intermediate alloy and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104928540A (en) * | 2015-06-19 | 2015-09-23 | 承德天大钒业有限责任公司 | Al-Nb-Si-Ti intermediate alloy and preparation method thereof |
| CN104928540B (en) * | 2015-06-19 | 2017-03-08 | 承德天大钒业有限责任公司 | A kind of aluminium niobium silicon titanium intermediate alloy and preparation method thereof |
| CN107586955A (en) * | 2016-07-08 | 2018-01-16 | 宝钢特钢有限公司 | A kind of quaternary intermediate alloy prepared for titanium alloy, preparation method and the usage |
| CN106756421A (en) * | 2016-11-30 | 2017-05-31 | 承德天大钒业有限责任公司 | A kind of aluminium molybdenum chromium tin niobium zirconium intermediate alloy and preparation method thereof |
| CN106756266A (en) * | 2016-11-30 | 2017-05-31 | 承德天大钒业有限责任公司 | A kind of aluminium molybdenum chromium tin niobium intermediate alloy and preparation method thereof |
| CN109881034A (en) * | 2019-03-22 | 2019-06-14 | 河北四通新型金属材料股份有限公司 | A kind of tin zirconium intermediate alloy, preparation method and applications |
| CN110564997A (en) * | 2019-09-17 | 2019-12-13 | 承德天大钒业有限责任公司 | Aluminum-titanium-molybdenum intermediate alloy and preparation method thereof |
| CN110760708A (en) * | 2019-11-27 | 2020-02-07 | 承德天大钒业有限责任公司 | Aluminum-tin-zirconium-molybdenum-chromium intermediate alloy and preparation method thereof |
| CN114672286A (en) * | 2022-04-15 | 2022-06-28 | 王凯 | Self-heating composition and application thereof |
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Application publication date: 20140702 |